You consume more goods and services. If you want to spend time out of the workforce you can reduce your consumption of goods and services. Most people in the US don't do this because they value consumption more than leisure.
If anything, this cuts against quality of life in Denmark. If a significant number of Danes prefer consumption to leisure then they are harmed by parental leave. They are forced to trade consumption for leisure even though they don't want to. In much the same way, if you forced me to trade my Thinkpad for an equally priced Macbook, I'd be worse off in a manner that is not reflected in GDP.
You consume more goods and services. If you want to spend time out of the workforce you can reduce your consumption of goods and services. Most people in the US don't do this because they value consumption more than leisure.
If anything, this cuts against quality of life in Denmark. If a significant number of Danes prefer consumption to leisure then they are harmed by parental leave. They are forced to trade consumption for leisure even though they don't want to. In much the same way, if you forced me to trade my Thinkpad for an equally priced Macbook, I'd be worse off in a manner that is not reflected in GDP.